1 package Test::Valgrind::Tool;
8 Test::Valgrind::Tool - Base class for Test::Valgrind tools.
16 our $VERSION = '1.02';
20 This class is the base for L<Test::Valgrind> tools.
22 They wrap around C<valgrind> tools by parsing its output and sending reports to the parent session whenever an error occurs.
23 They are expected to function both in suppressions generation and in analysis mode.
27 use base qw/Test::Valgrind::Component Test::Valgrind::Carp/;
31 =head2 C<requires_version>
33 The minimum C<valgrind> version needed to run this tool.
38 sub requires_version { '3.1.0' }
40 =head2 C<< new tool => $tool >>
42 Creates a new tool object of type C<$tool> by requiring and redispatching the method call to the module named C<$tool> if it contains C<'::'> or to C<Test::Valgrind::Tool::$tool> otherwise.
43 The class represented by C<$tool> must inherit this class.
49 $class = ref($class) || $class;
53 if ($class eq __PACKAGE__) {
54 my $tool = delete $args{tool} || 'memcheck';
56 $tool = __PACKAGE__ . "::$tool" if $tool !~ /::/;
57 $class->_croak("Couldn't load tool $tool: $@") unless eval "require $tool; 1";
58 return $tool->new(%args);
61 $class->SUPER::new(@_);
66 Creates a new tool object suitable for generating suppressions.
68 Defaults to return C<undef>, which skips suppression generation.
74 =head2 C<report_class $session>
76 Returns the class in which suppression reports generated by this tool will be blessed.
78 This method must be implemented when subclassing.
84 =head2 C<args $session>
86 Returns the list of tool-specific arguments that are to be passed to C<valgrind>.
87 All the suppression arguments are already handled by the session.
89 Defaults to the empty list.
95 =head2 C<suppressions_tag $session>
97 Returns a identifier that will be used to pick up the right suppressions for running the tool, or C<undef> to indicate that no special suppressions are needed.
99 This method must be implemented when subclassing.
103 sub suppressions_tag;
105 =head2 C<start $session>
107 Called when the C<$session> starts.
109 Defaults to set L<Test::Valgrind::Component/started>.
111 =head2 C<parse $session, $fh>
113 Wraps around either L</parse_suppressions> or L</parse_analysis> depending on the running mode of the C<$session>.
114 Croaks if the tool isn't started.
119 my ($self, $sess, $fh) = @_;
121 $self->_croak('Tool isn\'t started') unless $self->started;
123 if ($sess->do_suppressions) {
124 $self->parse_suppressions($sess, $fh);
126 $self->parse_analysis($sess, $fh);
130 =head2 C<parse_suppressions $sesssion, $fh>
132 Parse the suppression reports that the C<valgrind> process attached to the session C<$session> send through the filehandle C<$fh>.
134 This method must be implemented when subclassing.
138 sub parse_suppressions;
140 =head2 C<parse_analysis $sesssion, $fh>
142 Parse the error reports sent by the C<valgrind> process attached to the session C<$session> through the filehandle C<$fh>.
144 This method must be implemented when subclassing.
150 =head2 C<finish $session>
152 Called when the C<$session> finishes.
154 Defaults to clear L<Test::Valgrind::Component/started>.
158 L<Test::Valgrind>, L<Test::Valgrind::Component>, L<Test::Valgrind::Session>.
162 Vincent Pit, C<< <perl at profvince.com> >>, L<http://www.profvince.com>.
164 You can contact me by mail or on C<irc.perl.org> (vincent).
168 Please report any bugs or feature requests to C<bug-test-valgrind at rt.cpan.org>, or through the web interface at L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Test-Valgrind>.
169 I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.
173 You can find documentation for this module with the perldoc command.
175 perldoc Test::Valgrind::Tool
177 =head1 COPYRIGHT & LICENSE
179 Copyright 2009 Vincent Pit, all rights reserved.
181 This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
185 1; # End of Test::Valgrind::Tool